Presentation is loading. Please wait.

Presentation is loading. Please wait.

O/S State Diagrams © 2004, D. J. Foreman.

Published byNickolas Gilbert Modified over 6 years ago

Similar presentations

Presentation on theme: "O/S State Diagrams © 2004, D. J. Foreman."— Presentation transcript:

1 O/S State Diagrams © 2004, D. J. Foreman

2 Basic Transitions # ready queues may be >1 © 2004, D. J. Foreman

3 Java Thread States waiting Ready/Running new Terminated
© 2004, D. J. Foreman

4 UNIX Process States C New D Pre-empted Ready in memory Ready Swapped
A=system call or interrupt B=interrupt/return C=RAM available D=no RAM C New D Pre-empted Ready in memory swap in/out Ready Swapped int/sig A re-sched User Running Waiting in memory Kernel Running Waiting Swapped B Terminated Blocking I/O or Wait requested © 2004, D. J. Foreman

5 Windows Thread States Runnable Not runnable CPU scheduled New Ready
Running preempted Block requested Block released Waiting Terminated Page/stack wait Not runnable © 2004, D. J. Foreman

6 Linux Process/Thread States
New Ready Running Terminated H/W Any signal or event Uninterruptible Interruptible Signal Stopped* ULT=kernel-level process * Requires action from another process © 2004, D. J. Foreman

Download ppt "O/S State Diagrams © 2004, D. J. Foreman."

Similar presentations

Uniprocessor Scheduling Chapter 9 Operating Systems: Internals and Design Principles, 6/E William Stallings Patricia Roy Manatee Community College, Venice,

Uniprocessor Scheduling Chapter 9 Operating Systems: Internals and Design Principles, 6/E William Stallings Patricia Roy Manatee Community College, Venice,
Operating Systems COMP 4850/CISG 5550 Processes Introduction to Threads Dr. James Money.

Operating Systems COMP 4850/CISG 5550 Processes Introduction to Threads Dr. James Money.
A. Frank - P. Weisberg Operating Systems Process Scheduling and Switching.

A. Frank - P. Weisberg Operating Systems Process Scheduling and Switching.
Chapter 5 Processes and Threads Copyright © 2008.

Chapter 5 Processes and Threads Copyright © 2008.
Slide 6-1 Copyright © 2004 Pearson Education, Inc. Operating Systems: A Modern Perspective, Chapter 6 Implementing Processes, Threads, and Resources.

Slide 6-1 Copyright © 2004 Pearson Education, Inc. Operating Systems: A Modern Perspective, Chapter 6 Implementing Processes, Threads, and Resources.
Page 1 Processes and Threads Chapter 2 2.1 Processes 2.2 Threads 2.3 Interprocess communication 2.4 Classical IPC problems 2.5 Scheduling.

Page 1 Processes and Threads Chapter Processes 2.2 Threads 2.3 Interprocess communication 2.4 Classical IPC problems 2.5 Scheduling.
1/27/2010CSCI 315 Operating Systems Design1 Processes Notice: The slides for this lecture have been largely based on those accompanying an earlier version.

1/27/2010CSCI 315 Operating Systems Design1 Processes Notice: The slides for this lecture have been largely based on those accompanying an earlier version.
Process Management. External View of the OS Hardware fork() CreateProcess() CreateThread() close() CloseHandle() sleep() semctl() signal() SetWaitableTimer()

Process Management. External View of the OS Hardware fork() CreateProcess() CreateThread() close() CloseHandle() sleep() semctl() signal() SetWaitableTimer()
1HW1 Explain the transition “interrupted” and “event wait.” Describe how they are different. NewReadyRunningTerminated Waiting (Blocked) admitted Dispatched.

1HW1 Explain the transition “interrupted” and “event wait.” Describe how they are different. NewReadyRunningTerminated Waiting (Blocked) admitted Dispatched.
1 An Architectural View of an OS Inter-process communication Process Scheduling Process Control Subsystem File Subsystem Device Drivers Hardware Control.

1 An Architectural View of an OS Inter-process communication Process Scheduling Process Control Subsystem File Subsystem Device Drivers Hardware Control.
1/23/2008CSCI 315 Operating Systems Design1 Processes Notice: The slides for this lecture have been largely based on those accompanying the textbook Operating.

1/23/2008CSCI 315 Operating Systems Design1 Processes Notice: The slides for this lecture have been largely based on those accompanying the textbook Operating.
1 When to Switch Processes 3 triggers –System call, Interrupt and Trap System call –when a user program invokes a system call. e.g., a system call that.

1 When to Switch Processes 3 triggers –System call, Interrupt and Trap System call –when a user program invokes a system call. e.g., a system call that.
CS444/CS544 Operating Systems Threads Introduction to CPU Scheduling 2/02/2006 Prof. Searleman

CS444/CS544 Operating Systems Threads Introduction to CPU Scheduling 2/02/2006 Prof. Searleman
Chapter 6 Implementing Processes, Threads, and Resources.

Chapter 6 Implementing Processes, Threads, and Resources.
Slide 6-1 Copyright © 2004 Pearson Education, Inc. Operating Systems: A Modern Perspective, Chapter 6.

Slide 6-1 Copyright © 2004 Pearson Education, Inc. Operating Systems: A Modern Perspective, Chapter 6.
Process Scheduling in Windows XP, Linux, and UNIX By Sarah G. Levinson CSC 4320.

Process Scheduling in Windows XP, Linux, and UNIX By Sarah G. Levinson CSC 4320.
Slide 6-1 Copyright © 2004 Pearson Education, Inc. Operating Systems: A Modern Perspective, Chapter 6.

Slide 6-1 Copyright © 2004 Pearson Education, Inc. Operating Systems: A Modern Perspective, Chapter 6.
Processes and Threads.

Processes and Threads.
Chapter 3 Advanced Operating System

Chapter 3 Advanced Operating System
Processes and Threads CS550 Operating Systems. Processes and Threads These exist only at execution time They have fast state changes -> in memory and.

Processes and Threads CS550 Operating Systems. Processes and Threads These exist only at execution time They have fast state changes -> in memory and.

Similar presentations

Ads by Google